Valve



March 22, 1932. P P. DEAN Filed April 5, 1928.

Peter F051 INVENTOR m2 flea/1.

ATT RNEY Patented Mar. 22, 1932v UNITED: ST-A was PATaN'r orrlcr.

PETER PAYNE DEAN, OF NEW CANAAN, CONNECTIC UT, ASSIGNOR TO THE IJJKITOBQUE I CORPORATION, A CORPORATION OF- NEW YORK efi'ecting the balance or equalization" of the' VALVE Application filer} April 5,

The invention relates to valvesfor control-' with the means for admitting abrasive maof fluids, particularly to valves of the type embodying a swinging or pivoted ling the flow disk member, and adaptable more especially tohigh temperature, and high pressure 0011-.

The invention is concerned specifimeans for ditions. cally with an improvement in fluid pressures existing on opposite sides of the dlsk member of such valves to allow for readily manipulating the same, as in opening -pass around the disk of avalve locate pressure or live side the valve under load conditions. 1

As is well understood in the art, it is common practice in-connection with both steam and water lines to provide some form of by therein in order to convey fluid from the of the valve port to the empty or dead side, for example as in the case of steam, to warm upthe-line beyond the valve and create a pressure therein substantially equal to that prcvailingin the live side of the valve. By this expedient, the valve disk may he'moved without undue effort; and it is the object of the present invention to provide in a valve'novel means for effecting this by-passing of fluid from one side of its disk to the other which means, moreover, are to be carried by the disk itself and operable by the mechanism generally employed to move the valve disk ofl" its seat. A

further object of the invention resides in an arrangement whereby an abrasive material may readily be introduced or injected into the valve for grinding into its seat an auxiliary valve piece. employed for the lay-passing operation aforesaid, and without requiring removal of the said valve disk or of parts other than the main cover of the valve.

The nature of the invention, however, will best be understood when described in connection with the accompanying drawings, in which Fig, 1 is a longitudinal section through a swing-disk type of valve embodying the novel by-passing means. '1

Fig. 2 is adetail sectional view of the valve disk and associated parts, with the by-pass indicated in the fully opened position; and

d tened thereto,-

192a- Serial no. aamaa.

Outlet' 12,. moreover, is provided with' aseating: ring 14' which is to be securely fasas by welding; and there. is adapted to contact with said ring'a mova valve element shown as the closure disk 15 which is mounted, as hereinafter more fully set forth, upon the inner end of a swingable arm 16. The latter is secured to an operating body to support said arm and whereby the position, indicated in Fig. 1, or into the open osition, indicated in Fig.2, by correspondlngly rocking said shaft as is well understood in the art.

The invention relates more particularly to! the-provision of means for by-passing fluid from the inlet 11 to the outlet 12 through an opening 30in the said valve disk 15 itself. In accordance therewith, the said disk is pro- 'vided with .a central enlargement or boss 15' bored axially through, the bore at the inner end being provided with a shouldered portion 18 to which is attached in manner to prevent leakage a metal seat ring 19.

The free end of arm 16, moreoyer, is turned inwardly to extend into said bore of the enlar ed portion, and provides a spindle 20 coaxia therewith. Over the free or outer end of this spindle is screwed a ball or semispherical member constituting an auxiliary ble or rock shaft 17 which extends into the valve the valve disk, as an abutment, and the valve 50 portion of'the valve disk.

over the normal sealing portion of said valve piece. Immediately behind said valve piece and fitted over the stem is a compression "spring 23'which is held in position by means ofan annular nut 24 located about the said stem and secured into the bore of the enlarged portion 15' by screwing the same therein, as indicated. By thisexpedient, a substantial pressure may be exerted between piece 21 axially movable with respect to spindle 20 and mounted at the outer. end thereof. This affects a seal thereby at the seat ring 19,'the sealing action being assisted also by the fluid pressure prevailing on the inlet side of the valve disk'15. i I

When the valve is closed, that is when its disk 15 is seatedagainst the seat ring 14, as indicated in Fig. 1 of the drawings,

the auxiliary valve piece 21 aforesaid would also be maintained in sealed position as here- Inbefore descrlbed; and under normal operating conditions, an extremely heavy pressure persquare inch on the said disk 15 would prevail so that it would, under usual conditions, be practically impossible to move said disk away from its seat without the application of undue effort.

With the novel construct-ion, however,

I should it be desired to open the valve, that -eral grooves 22 and past the seat 19 t is to say move the valve disk 15 away from contact with its seat 14, as .b accordingly rotating the shaft 17, it will be apparent that the first effect of the rocking of said arm 16 in a direction away from outlet 12 will be to compress the sprin 23. This action, it will be appreciated, is effected against a much less force, due to the smaller area involved, than prevails upon the valve disk 15 as a whole.

The valve piece 21 is thereby drawn with arm 16 from its seat 19 and allows the fluid to leak through to the outlet side of the valve disk, said flu1d passing first through the annular space'between spindle 20 and nut 24, then through the spring chamber behind the valve piece, and finally through the eriphlrough the inner end of the bore of said e The pressures thus become substantially balanced u on opposite sides of 'the valve disk 15 WhlCh may then be opened without ggqliliiring any appreciable effort after sprin during the first. stage prevents the said valve piece from moving away from its disk.

This particular arrangement in connection with the valve disk lends itself, also, to 0on venient grinding of the auxiliary valve piece 21 through the ready provision of means for 'IIIJGCtlIlQ suitable abrasive material between said valve and its seat. Reference being had larged more particularly to Fig. 2 of the drawings, it will be noted that when the valve disk is thrown fully open, the auxiliary valve is substantially coaxially positioned with respect to the hand hole in the top of the valve. If, therefore, the cover 13 be removed, access mayv readily be had to said valve disk; and the outer portion of the longitudinal bore therethrough is threaded'as at 30, to the end that vseparation bctweenthe disk 15 with seat 19' and the valve piece 21, .a perforated bar 32 may be placed on the casing over the hand hole therein after removing cover 13, and through which bar'the tubular member 31 is then caused to pass and its inner end threaded into the said disk. The outer end of the tubular member, furthermore, is threaded and adapted to receive a nut 33 which .when tightened up, will bear against said bar to draw up the the disk 15 with seat 19 to separate the latter from the valve piece 21, arm 16 retaining its position for the fully opened valve disk 15 aforesaid. 'Thus, there is no necessity for removing the disk itself or parts other than the mam cover ofthe valve in order to provide suitable abrasive material for grind- 111%}(if the said auxiliary valve piece.

e-novel arrangement herein set forth, it y will be apreciated, requires no additional external apparatus for effecting the by-passin of fluid from the inlet to the outlet sides-o the. valve, the same being effected solel by the actuation of the usual valve rock s aft, as the shaft or valve stem 17, for controlling the swin 'ng of the valve disk proper;

The said auxiliary mechanism,-also, is carried by the disk of the, valve; and, further-' h-pressure valve, comprising a cased with an inlet and an outlet and affording a'valveseat, a swingdisk adapted to close the outlet at g said seat and having a portion bored through as been fully compressed, while the full operating pressure applied to the disk 15 from .oneside' to the other, a rock shaft, an arm'movable therewith havin a spindle extending into the boreof sai disk, a valve piece mounted on said spindle to seal the bore of the disk and. movable with said arm relativelyto said disk, an annular nut mo'unted loosely about the outer portion of the spindle and in threaded engagement with' the disk, located betweensaid nut and the valve piece urging the latter to a sealand resilient means ated.

ing position in its valve disk for separation therefrom only when the rock shaft is actu- 2; A high-pressure valve, comprising a casingprovided with an inletand an outlet and the latter affording a valve seat, a swinging valve disk adapted to close the outlet at said seat and having a portion bored through fromone side to the other, a rock shaft, an arm movable therewith having a spindle extending into the bore of said disk, a semispherical valve piece provided with peripheral grooves, mounted on said-spindle to seal thebore of the disk and movable with said arm relatively to said disk, an annular nut' mounted looselyabout the outer portion of the spindle and in threaded engagement with the disk,and resilient means located between said nut and the valve piece urging the latter to a sealing position in its valve disk for separation therefrom only when the rock shaft is actuated.

3. A valve, comprising a casing provided with an inlet and an outlet and the latter affording a valve seat, a swinging valve disk adapted to close the outlet at said seat and having a portion bored through from one side to the ot er and counterbored at the outer end to afford a shoulder, a seat ring-secured thereto at the shoulder, a semi-spherical valve piece secured to the outer end of the spindle and normally seating on the seat ring, said valve piece being provided'with peripheral grooves, an annular nutabout said spindle secured in the inner end of the bore, and a spring between the said valve piece and said annular nut to normally maintain the said valve piece seated.

4. A valve, comprising a .casing'provided with an inlet and an outlet and the latter affording a valve seat, a swinging valve disk adapted to close the outlet at said seat and having a portion bored through from oneside to the other, a rock shaft, an arm movable therewith having a spindle extending into the bore of said disk, and a valve piece mounte on said spindle to seal the bore of the disk and movable with said-arm relatively thereto, the outer end of. the bore being threaded to receive a tubular member for delivering abrasive material to the valve piece.

5. A valve, comprising a casing having a hand hole and provided with an inlet and an outlet, the latter affording a valve seat, a swinging valve disk adapted to close the outlet ofsaid seat and having a portion bored through from one-side to the other and adapted to be positioned coaxially with said hand hole, a rock shaft, an army movable therewith having a spindle extending into the bore of said disk, a valve piece mounted on said spindle toseal the bore of the disk and movable with said arm relatively to said disk,

resilient means acting on said valve piece to efiect normally the sealing of the same, a

tubular member adapted to be through said hand hole and threaded into the bore of said disk when the latter is positioned coaxially with said hand hole, a b

fitting over the outer end of said tubular men'if 7 ber and upon the valve casing, and a nut, working over the outer end of said tubular member against said bar.

Intestimonywhereof I afiix my signature. I J PETER -PAY NE DEAN.

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